There are many wondeful projects out there. It's a matter of how you want to spend your true capital: time. After the initial exciting investments, how much ongoing time overhead is it worth to keep all the 'balls in the air."

So-called passive return projects, that is, those in which you have the lowest maintenance time requrements and are most self-sustaining, are the ones to look for. Of those, the ones which dovetail with your other chosen projects, that is, give you something you want or already are doing as inputs or outputs for other projects, are better targets.

I can see worms as plant-based waste converters, animal feed, soil builders, fish / crawdad bait, and for sale to bait stores. I wonder if you could construct one of those multi-level grow systems: fish and crawdads in tanks eating animal and plant waste, animals eating plants and plant waste housed above the tanks, and plants growing above the animal cages in worm inhabited and enriched soil?

I know Blast needs more projects!